Is there a way to know if the other person is recording the call when talking on the phone?

pu1. Maybe it's possible to tell the news agency or something else about the recording, but now it's on its own, so we don't know

2017-10-20

OK

pu2. There's no way to know

2017-10-20

OK

pu3. There's no way to know because the phone records itself

2017-10-20

OK